MLS# OC25173221 – 1003 Charter Oak Avenue, St. Helena, CA 94574

Price: $4,490,000
Beds: 4
Baths: 3 full, 1 half
Living Area SqFt: 4,488
Status: Active
Property Type: Detached
Year Built: 2025
Days on Website: 44

Courtesy of Flex Realty 714-317-7250

Property Description

PRICED TO SELL WITH INSTANT EQUITY!!! Rare Napa Valley estate on 1.29 acres, under construction with $400K+ already invested and existing contractor mobilized for rapid completion. Buyer walks in with instant equityappraised recently for $5.6M as is; projected ARV $8.375M. Shovel-ready contemporary compound features a 4,049 sf main residence and 406 sf guest house designed for seamless indoor/outdoor living: vaulted ceilings, floor-to-ceiling glass, reclaimed natural wood, stone accents, and handcrafted tile. Also includes a 1,377 sf detached garage and a 1,000 sf outdoor kitchen with climate-controlled wine room. Landscaped grounds offer a sculptural entry court, kidney-shaped pool, multi-use putting green/lawn, mature privacy plantings, and sweeping vineyard and estate views. ?? Value-Add Bonus: Property qualifies for a lot split under SB9, offering rare development upside and dual-lifestyle or income potential. Sold as-is; completion requires approximately $1.16M. Sustainable infrastructure is integrated with durable materials and efficient systems. Ideal for an investor, builder/developer, or build-to-suite end buyer seeking fast execution, trophy wine-country distinction, and unparalleled value creationjust minutes from Napas tasting corridor and regional transport.

Open House

Property Details and Features

  • Bathrooms
  • 4 total bathrooms
  • 3 full bathrooms
  • 1 half bathroom
  • Bedrooms
  • 4 total bedrooms
  • 4 possible bedrooms
  • Building
  • Built in 2025
  • Building area total: 4488
  • 1 stroy
  • 1 story total
  • Living area: 4488
  • Living area units: Sqft
  • Building area units: Sqft
  • Entry level: 1
  • “No Common Walls”
  • “1 Story”
  • Cooling
  • “Central Forced Air”
  • “Other/Remarks”
  • Fireplaces
  • “FP in Living Room”
  • Garage
  • 2 spaces
  • Water Features
  • Water source: “Public”
  • Listing
  • Listing ID: OC25173221
  • List price: $4,490,000
  • 44 days on market
  • Listing contract date: 2025-08-02
  • Special listing conditions: “Standard”
  • “Cash To New Loan”
  • Lot
  • Size area: 1.29
  • Size units: Acres
  • Parking
  • Total: 2
  • Pool
  • “Below Ground”
  • “Private”
  • Property
  • Property subtype: Detached
  • Property type: Residential
  • “Vineyard”
  • Sewer
  • “Public Sewer”

Property Map

$4,490,000 – 1003 Charter Oak Avenue, St. Helena, CA 94574

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Marc Lyman delivers results with a proven track record in San Diego real estate. Marc leverages more than a decade of expertise in San Diego's dynamic real estate market. Known for his innovative marketing strategies, unwavering integrity, exemplary communication, and tenacious commitment to client satisfaction, Marc orchestrates smooth and seamless transactions while always prioritizing your best interests. With sharp negotiation skills, a deep understanding of San Diego’s neighborhoods, and a strategic, client-focused approach, Marc is dedicated to providing conscientious counsel and maximizing your real estate success. Whether you're buying or selling a home in San Diego, connect with Marc today and experience the expertise that leads to successful real estate results.

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MLS# OC25173221 – 1003 Charter Oak Avenue, St. Helena, CA 94574